Description
Signature Flowmaster Sound. Add the unmistakable Flowmaster sound to your S550 EcoBoost Mustang with an American Thunder Series Axle-Back Exhaust system from AmericanMuscle. The Flowmaster American Thunder Axle-Back Exhaust with its mandrel-bent tubing will greatly improve your Mustang’s exhaust flow for an increase in power, and the included baffled mufflers will improve your exhausts sound for an aggressive muscle car exhaust note.
Stainless Steel Construction. Constructed from durable 16 gauge 409 stainless steel tubing for its corrosion resistant properties, the Flowmaster American Thunder Axle-Back features Super 10 Series mufflers with massive 4.0″ diameter polished stainless steel tips for impressive muscle car looks and sound. As an added bonus, the tips are embossed with the “Flowmaster” logo for true custom styling.
Cut & Clamp Installation. The installation of this Axle-Back Exhaust requires cutting and removing the stock muffler assemblies and clamping the new muffler assemblies in place. Clamps and instructions are provided.
Application. This Flowmaster American Thunder Axle-Back Exhaust system is designed to fit the 2015-2023 EcoBoost Mustangs without the Active Valve Exhaust.
Flowmaster 817748
CA Residents: WARNING: Cancer and Reproductive Harm
- Aggressive Flowmaster Sound
- Durable 409 Stainless Steel Construction
- Mandrel-Bent Tubing
- Polished 304 Stainless Steel 4″ Tips
- Includes a pair of Flowmaster Super 10 Series Mufflers
- Not Compatible with Active Exhaust
- Fits 2015-2023 EcoBoost Mustangs
| Brand | Flowmaster |
| Exhaust System Type | Axle-Back System |
| Exhaust System Material | Stainless Steel |
| Exhaust System Tip Finish | Chrome, Polished |
| Exhaust System Tubing Diameter | 3.00 Inch |
| Exhaust Loudness | Moderate |






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